Add animated stars that fade in and out to sections without background images

Implements a new JavaScript function `initStars` that dynamically creates and appends circular star elements to sections with the class `.home-info`. These stars have random sizes, positions, fade animations, and durations, controlled by CSS and keyframes defined in `static/css/styles.css`. The `initStars` function is called on page load via `initPageLoadAnimation`.

Replit-Commit-Author: Agent
Replit-Commit-Session-Id: 5e584ab0-c340-4432-97ef-1972582b60e9
Replit-Commit-Checkpoint-Type: full_checkpoint
Replit-Commit-Event-Id: e42678c3-4b34-4047-bd6d-316f729459e1
Replit-Commit-Screenshot-Url: https://storage.googleapis.com/screenshot-production-us-central1/d0a1d46d-d203-4308-bc6a-312ac7c0243b/5e584ab0-c340-4432-97ef-1972582b60e9/vuYxJMM

static/css/styles.css

@@ -307,6 +307,43 @@ hr {
     margin: 40px auto 64px auto;
     padding-bottom: 64px;
     color: var(--white);
+    position: relative;
+}
+
+.home-info::before {
+    content: '';
+    position: absolute;
+    top: 0;
+    left: -5%;
+    width: 110%;
+    height: 100%;
+    pointer-events: none;
+    z-index: 0;
+}
+
+.home-info > * {
+    position: relative;
+    z-index: 1;
+}
+
+.star {
+    position: absolute;
+    border-radius: 50%;
+    background: rgba(255, 255, 255, 0.6);
+    pointer-events: none;
+    animation: starFade var(--duration) ease-in-out infinite;
+    animation-delay: var(--delay);
+}
+
+@keyframes starFade {
+    0%, 100% {
+        opacity: 0;
+        transform: scale(0);
+    }
+    50% {
+        opacity: 1;
+        transform: scale(1);
+    }
 }
 
 .team-info {